Method and system for acquiring ground water storage variation value by combining GRACE satellite

A groundwater and change value technology, applied in the field of satellite meteorological data, can solve problems such as low accuracy and achieve the effect of improving accuracy

Active Publication Date: 2017-03-22
TSINGHUA UNIV
View PDF5 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Based on this, it is necessary to address the problem of low accuracy of groundwater storage change values ​​retrieved by gravity satellites, and provide a method and system for obtaining groundwater storage change values ​​in conjunction with gravity satellites, wherein the method includes:

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and system for acquiring ground water storage variation value by combining GRACE satellite
  • Method and system for acquiring ground water storage variation value by combining GRACE satellite
  • Method and system for acquiring ground water storage variation value by combining GRACE satellite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0064] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0065] figure 1 It is a flow chart of the method for obtaining the change value of groundwater storage by the joint gravity satellite of an embodiment, such as figure 1 The methods shown for the Joint Gravity Satellite to obtain groundwater storage changes include:

[0066] Step S100, acquiring satellite data of gravity satellites, land surface water storage data, water intake hydrological model data, and latitude and longitude information of preset areas.

[0067] Specifically, the gravity satellite includes the gravity satellite GRACE (Gravity Recovery and ClimateExperiment), and other gravity ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a method and system for acquiring a ground water storage variation value by combing a gravity recovery and climate experiment (GRACE) satellite. The method comprises: acquiring satellite data of the GRACE satellite, land water storage data, water intake and use hydrological model data and longitude and latitude information of a preset region, and computing a satellite appearance ground water storage variation value of the preset region; and acquiring analogue ground water storage variation iterative value of the preset region, and determining an analogue ground water storage variation iterative value of the preset region, which meets the preset condition, to be the ground water storage variation value according to the analogue ground water storage variation iterative value of the preset region by using the water intake and use hydrological model data as a boundary constraint condition. According to the method for acquiring the ground water storage variation value by combing the GRACE satellite, the acquired ground water storage variation value is more accurate, the spatial resolution of the ground water variation value can be improved about 50 times, and the inversion error of the ground water storage variation value is controlled within 10%.

Description

technical field [0001] The invention relates to the technical field of satellite meteorological data, in particular to a method and a system for acquiring groundwater storage variation values ​​in conjunction with gravity satellites. Background technique [0002] Over the past century, agricultural irrigation has consumed more than 90% of the world's freshwater resources, and globally, 40% of agricultural irrigation water comes from groundwater. The monitoring and management of groundwater resources is especially important for areas that rely on groundwater for agricultural irrigation, areas that rely on groundwater for industrial, domestic and municipal water use, especially for arid and semi-arid regions around the world. And with the rapid development of population growth and urbanization, the degree of human exploitation of groundwater is constantly increasing, and the recovery of groundwater resources, especially deep groundwater, takes a long time, that is, within a ce...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
CPCG16Z99/00
Inventor 龙笛洪阳
Owner TSINGHUA UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap